All names: Gaia DR2 577487253783136384, SDSSJ090640.00+025146.3, TIC 270606608, GALEX J090639.9+025146, Gaia DR3 577487253783136384, 2MASS J09063999+0251459, SDSS J090640.00+025146.3, SDSS J090640.00+025146.4
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 09 06 40.00 | 09 06 40.00 (0.06) | ||
| Declination | 02 51 46.40 | 02 51 46.39 (0.05) | ||
| Spectral type | sdB+MS | sdB+? | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.23 (0.1) | 0.18 (0.07) | |
| Distance | [pc] | 4444.44 (1960) | 5707.76 (2232) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.35 (0.2) | -3.209 (0.07) | |
| Proper motion (declination) | [mas/yr] | -0.017 (0.1) | 0.221 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.46 (0.2) | 16.34 (0.01) | ||
| H magnitude | 16.31 (0.2) | 16.19 (0.02) | ||
| K magnitude | 15.06 | 16.18 (0.03) | ||
| u magnitude | 17.31 (0.008) | 17.31 (0.008) | ||
| g magnitude | 16.88 (0.004) | 16.88 (0.004) | ||
| r magnitude | 16.89 (0.005) | 16.89 (0.005) | ||
| i magnitude | 16.94 (0.005) | 16.94 (0.005) | ||
| z magnitude | 17.00 (0.01) | 17.00 (0.01) | ||
| G magnitude | 16.85 (0.001) | 16.83 (0.003) | ||
| BP magnitude | 16.93 (0.01) | |||
| RP magnitude | 16.61 (0.008) | |||
| Pan g magnitude | 16.91 (0.008) | |||
| Pan r magnitude | 16.90 (0.003) | |||
| Pan i magnitude | 16.95 (0.003) | |||
| Pan z magnitude | 17.05 (0.008) | |||
| Pan y magnitude | 17.08 (0.007) | |||
| E(B-V) | 0.039 | |||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.